National Weather Service United States Department of Commerce

Arctic Air Will Move Into U.S. This Week

Arctic air will move back into the central Plains, Great Lake States and Western U.S. this week. Winter Storm Warnings, Winter Weather Advisories and Wind Chill Advisories are in effect in many areas. Recent heavy rains across the lower Mississippi and Tennessee Valleys will shift into the Carolinas Monday. Rivers that came up over the weekend will recede across portions of the South.
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Current Conditions

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10 Miles NE Cascade Locks OR

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Tonight

Rain/Snow Chance for Measurable Precipitation 80%

Rain/Snow

Low: 28 °F

Monday

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

High: 29 °FFalling Temperatures

Monday
Night

Mostly Clear

Mostly
Clear

Low: 8 °F

Tuesday

Sunny

Sunny

High: 21 °F

Tuesday
Night

Clear

Clear

Low: 11 °F

Wednesday

Sunny

Sunny

High: 25 °F

Wednesday
Night

Areas Freezing Fog

Areas
Freezing Fog

Low: 14 °F

New Year's
Day

Areas Freezing Fog

Areas
Freezing Fog

High: 28 °F

Thursday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 22 °F

Detailed Forecast

  • Tonight Rain and snow showers, becoming all snow after 10pm. Low around 28. West wind 7 to 10 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 2 inches possible.
  • Monday Snow showers likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 18 by 5pm. South southeast wind 7 to 13 mph becoming east in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
  • Monday Night Mostly clear, with a low around 8. Wind chill values as low as -7. East wind around 14 mph, with gusts as high as 21 mph.
  • Tuesday Sunny, with a high near 21. Wind chill values as low as -9. East wind around 16 mph, with gusts as high as 23 mph.
  • Tuesday Night Clear, with a low around 11. East wind 9 to 13 mph.
  • Wednesday Sunny, with a high near 25.
  • Wednesday Night Areas of freezing fog after 10pm. Mostly clear, with a low around 14.
  • New Year's Day Areas of freezing fog. Mostly sunny, with a high near 28.
  • Thursday Night Mostly cloudy, with a low around 22.
  • Friday A chance of snow. Mostly cloudy, with a high near 36.
  • Friday Night A chance of rain. Mostly cloudy, with a low around 33.
  • Saturday A chance of rain. Mostly cloudy, with a high near 35.
  • Saturday Night A chance of rain. Mostly cloudy, with a low around 30.
  • Sunday A chance of rain. Mostly cloudy, with a high near 30.